Pith Number

pith:K7NADU2G

pith:2012:K7NADU2GKEVJUNDVTGWEZEEBHS

not attested not anchored not stored refs pending

Comment on "Uncertainty Relation for Photons"

Cai-Dong Xiong, Qi Qiu, Zhi-yong Wang

arxiv:1207.2841 v5 · 2012-07-12 · quant-ph · physics.optics

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{K7NADU2GKEVJUNDVTGWEZEEBHS}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T01:56:24.643235Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

57da01d346512a9a347599ac4c90813cad84ff39f93683259c059a441df5d4e3

Aliases

arxiv: 1207.2841 · arxiv_version: 1207.2841v5 · doi: 10.48550/arxiv.1207.2841 · pith_short_12: K7NADU2GKEVJ · pith_short_16: K7NADU2GKEVJUNDV · pith_short_8: K7NADU2G

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/K7NADU2GKEVJUNDVTGWEZEEBHS \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 57da01d346512a9a347599ac4c90813cad84ff39f93683259c059a441df5d4e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b560806d02bb6ed48015b7552bd84626e42d0663fe1a58322c3f7d3f31dca804",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-07-12T04:10:36Z",
    "title_canon_sha256": "75bb6e6dc25217dcfa427ad9ca031d5cf6cb072bc0a838a0cb1d27f24b6be034"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.2841",
    "kind": "arxiv",
    "version": 5
  }
}